Built Tough L Shape Interior Joint Bracket Set Of Eight Inside Corner Connectors For Aluminum Profile Framing Rock Solid Zinc Alloy Finish With Smooth Nickel Plating And Quick Install Hardware

Heavy Duty Set of 8 L Corner Brackets for Aluminum Frames
✔️ Zinc alloy, M6 holes, 40.5mm fit, holds frames tight

You get eight inside corner connectors designed to join square aluminum extrusions at perfect right angles. These hidden brackets slide directly into 4040 profile slots and lock down with set screws. You can use them to build sturdy workstations, CNC enclosures, or custom aquarium stands without exposed hardware ruining your look.

✅ Pack of eight nickel plated zinc alloy connectors
✅ Two M6 threaded holes per bracket for secure threading
✅ Outer measures 40.5mm x 12.2mm x 40.5mm / 1.59" x 0.48" x 1.59"
✅ Built straight into the 8mm channel of 4040 rails
✅ Includes matching set screws and hex wrench for fast installs

💡 What makes hidden interior joint brackets handy for industrial framing projects?
Installing square tube corners gets way simpler when you ditch external plates. The built in design keeps channels clear for sliding wheels or mounting linear rails. You will save time building robots and machine beds since everything snaps together flush.
- Aligns perfectly with standard 4040 T slot geometry for repeatable builds
- Handles heavy shear loads thanks to solid zinc alloy construction
- Stays out of the way when routing wiring through tight frame runs

✝️